Prince Harry
Prince Harry and Meghan Markle are getting serious about their relationship Reuters

Prince Harry is getting serious about his relationship with Meghan Markle. The British royal is reportedly planning to introduce the Suits actress to the Queen on Mother's Day.

A source told the Daily Star newspaper: "Meghan is headed to meet the Queen on Mother's Day. She's already been given the green light from Prince Charles, the next step is the Prince's grandmother."

Prince William proposed to Kate Middleton with his late mother, Princess Diana's engagement ring. It is rumoured that the 32-year-old royal will reportedly use Diana's tiara into an engagement ring for Markle.

"Diana's jewellery collection was left in trust for the boys and Meghan apparently loves emeralds. For Harry, like Wills before him, using his mother's gems means the two loves of his life will forever be linked," the insider added.

"After Diana died, the boys both chose a keepsake from Kensington Palace when they moved to Charles' rooms in St James's Palace. Prince William picked his mum's Cartier watch, and Harry picked her sapphire and diamond engagement ring."

"But they had an agreement that whoever got engaged first would have Diana's ring - and of course that was William and Kate. Harry wants the same sentiment when he proposes to Meghan, so he is working with the jewellers to design something incredible," the insider said.

If the couple's relationship works out, this will be second marriage for Meghan, who was previously married to Trevor Engleson in 2011. The two divorced in 2013.